/Engine/Plugins/Experimental/Web/WebAPI/Source/WebAPIEditor/Public/WebAPIProviderSettings.h
Strips the provided string of invalid characters for a member name. Optionally provide a prefix for invalid member names (ie. that start with a number).
[FString](API\Runtime\Core\Containers\FString) MakeValidMemberName ( const [FWebAPINameVariant](API\Plugins\WebAPIEditor\Dom\FWebAPINameVariant) & InString, const [FString](API\Runtime\Core\Containers\FString) & InPrefix ) const